quiz
quiz
quiz
quiz
quiz
100
the size of an individual hair strand is referred to as what?
texture
100
What is the compound made up of carbon, oxygen, hydrpgen, nitrogen and sulfur
amino acid
100
polypeptide chains are held together by three what?
end bonds
100
what bond has a medium strength?
salt bond
100
the cuticle is hydrofelic which means water loving and it is responsible for what?
perosity
200
texture is broken down into three categories fine medium and corse
fine medium and corse
200
What are the amounts of amino acids found in the body and how man are found in the hair?
21 in the body 18 in the hair
200
The three side bonds are called what?
hydrogen, salt and disulfide
200
Salt bond is broken down by ph and is reformed when what ?
ph is normalized
200
What is the second layer of the hair called?
cortex
300
What is the amount of hairs per square inch on the head called?
density
300
amino acids are the building blocks of what?
protein
300
What bond is the weakest bond in the hair?
hyrdogen
300
What bond is the strongest bond in the hair and is broken down by chemical process?
disulfide
300
healthy human hair is made up of 65% _____ and up to 35% ______
protein and moisture
400
What is the hairs ability to absorb moisture called?
perosity
400
when more than two peptides join together they are called what?
polypeptides
400
hydrogen bond can be broken down by what?
heat and water
400
how can you reform the disulfide bond after a chemical process?
neutralization
400
the most common reducing agent used in a perm is what?
thyoglycolic acid
500
What is it called when the hair has the ability to stretch up to 50% its original length and then return
elasticity
500
when 50+ peptides are joined together they form a what?
polypeptide chain
500
hydrogen can be reformed when the hair is what?
cool and dry
500
What is the outer most layer of the hair called?
cuticle
500
What is the main ingredient in relaxers?
sodium hydroxide
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